<template>
  <div class="tree-table">
    <br>
    <div class="total_time">
      统计时间：<span>{{ currentTime }}</span>
    </div>
    <br>
    <el-input placeholder="输入关键字进行过滤" v-model="filterText"> </el-input>
    <el-tree
      class="filter-tree"
      :data="data"
      :props="defaultProps"
      :filter-node-method="filterNode"
      ref="tree"
      node-key="id"
      :default-expanded-keys="[1]"
    >
        <span class="custom-tree-node" slot-scope = "scope">
            <span>{{scope.data.label}}</span>
            <span class="tree-botton-arr" v-if = "data.sysDefault !=1">
                <el-button type="text" size="mini">
                    <i class="el-icon-plus"></i>
                </el-button>
                <el-button type="text" size="mini">
                    <i class="el-icon-delete"></i>
                </el-button>
                <el-button type="text" size="mini">
                    <i class="el-icon-edit"></i>
                </el-button>
            </span>
        </span>
    </el-tree>
    <br>
    
  </div>
</template>
<script>
export default {
  name: "treeTable",
  data() {
    return {
      currentTime: null,
      filterText: "",
      data: [
        {
          id: '1',
          label: "一级 1",
          children: [
            {
              id: 4,
              label: "二级 1-1",
              children: [
                {
                  id: 9,
                  label: "三级 1-1-1",
                },
                {
                  id: 10,
                  label: "三级 1-1-2",
                },
              ],
            },
          ],
        },
        {
          id: 2,
          label: "一级 2",
          children: [
            {
              id: 5,
              label: "二级 2-1",
            },
            {
              id: 6,
              label: "二级 2-2",
            },
          ],
        },
        {
          id: 3,
          label: "一级 3",
          children: [
            {
              id: 7,
              label: "二级 3-1",
            },
            {
              id: 8,
              label: "二级 3-2",
            },
          ],
        },
      ],
      defaultProps: {
        children: "children",
        label: "label",
      },
    };
  },
  created() {
    let _this = this;
    setInterval(() => {
      _this.currentTime = this.$moment().format("YYYY-MM-DD HH:mm:ss");
    }, 1000);
  },
  watch: {
    filterText(val) {
      this.$refs.tree.filter(val);
    },
  },
  methods: {
    filterNode(value, data) {
      if (!value) return true;
      return data.label.indexOf(value) !== -1;
    },
  },
};
</script>
<style lang="scss" scoped>
.total_time {
  display: flex;
  font-weight: 500;
  font-size: 18px;
}
.tree-botton-arr{
    padding-left: 40px;
}
</style>